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Advisories

Netpbm before 10.86.51, 11.02.30, and 11.15.08 picttoppm Stack Buffer Overflow via paintPoly

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Severity
high
Date
Affecting

  • Netpbm >= 0, < 10.86.51

  • Netpbm >= 11.0, < 11.02.30

  • Netpbm >= 11.03, < 11.15.08

CWE
  • CWE-121 Stack-based Buffer Overflow
CVSS
8.5
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
Tristan Madani (Talence Security), Bryan Henderson
Description
Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains a stack-based buffer overflow in the picttoppm paintPoly() function due to an unbounded polygon point count. Attackers can supply a crafted PICT file with a polygon exceeding 100 points to overwrite the fixed pts array, causing crashes or potentially code execution.

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